PAM8906M1018-13

Overview

The PAM8906M1018-13 is a piezoelectric sounder driver manufactured by Diodes Incorporated, designed for battery-operated alarm and haptic feedback applications. It integrates a boost converter capable of generating an 18V output from a 2.1V to 5.5V supply. The device supports external PWM input or self-excitation modes (limited to lower voltage variants) and features automatic shutdown with current consumption below 1μA. Packaged in a space-saving MSOP-10 format, it includes thermal shutdown, overcurrent protection, and undervoltage lockout.

Feature Summary

• Integrated boost converter providing 18V output from a 2.1V to 5.5V supply range
• Supports external PWM input or self-excitation mode for simplified system design
• Automatic shutdown and wake-up control with shutdown current less than 1μA
• Built-in protections including thermal shutdown, overcurrent, overvoltage, and undervoltage lockout

Applications

• Smoke, gas, and water alarms
• Industrial security devices
• Air humidifiers and ultrasonic drivers
• Haptic feedback systems

Procurement Notes

Verify the specific ordering suffix M1018-13 corresponds to the 18V output variant in the MSOP-10 package. Confirm AEC-Q100 qualification requirements if automotive grade is needed, as standard versions may differ. Check datasheet revision DS44739 Rev. 2 - 2 for latest electrical characteristics and application circuit details before finalizing procurement.

Selection Notes

Select this component when driving piezo sounders requiring up to 18V drive voltage from low-voltage batteries. Ensure the load capacitance does not exceed 150nF. For smoke/gas alarms, verify if self-excitation mode is required; note that only 10V and 12V versions support this mode, while the 18V version requires external PWM input. Consider the 1.8MHz switching frequency for EMI management.

Part Context

This part belongs to the PAM8906 series of piezo sounder drivers. The 'M10' indicates the MSOP-10 package, '18' specifies the 18V boost output option, and '-13' denotes the 13-inch tape and reel packaging quantity of 2,500 units. Other variants include 10V and 12V output options within the same package.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. When evaluating alternatives, ensure compatibility with the 18V boost output requirement, MSOP-10 footprint, and operating temperature range of -40°C to +125°C.